Cat is Amazed with Water

My cat Jazz is incredibly amazed and amused with water, especially her water bowl. When we first adopted her, we noticed this strange habit instantly.

It started when we'd step in a big puddle of water every time we'd enter the kitchen. The answer became clear as to what was going on when we saw, a few feet out of our sight, was her water dish.

We caught her in the act shortly after. She seems to love pawing over the surface, in a digging motion, and all around the outside of the dish / floor surrounding it. Then, she must get even more excited, because she starts scooting her dish around the floor, often times flipping it over (she has a HEAVY ceramic dish...).

Jazz continues to paw around and over her dish, but now I keep it on carpeting :) Less spills, but I still can't figure out why she does it. My sister has two cats, and I've never seen them do anything like it. Pretty funny, but confusing, cat habit.